Open-source fine-tuning libraries
Open-source fine-tuning libraries covers self-run libraries for fine-tuning models on your own GPUs (LoRA/QLoRA, SFT, recipe toolkits); the code counterpart to managed fine-tuning platforms.
In brief
Open-source fine-tuning libraries, in brief.
What it isOpen-source fine-tuning libraries covers self-run libraries for fine-tuning models on your own GPUs (LoRA/QLoRA, SFT, recipe toolkits); the code counterpart to managed fine-tuning platforms.
Where it sitsOne of 12 categories in the Training and fine-tuning layer. Training and fine-tuning covers the frameworks, libraries and platforms used to train a model from scratch or adapt an existing one to a task, and the tools that track those experiments.
What we track30 products, including AReaL, Axolotl, bitsandbytes (QLoRA quantization), DeepSpeed (incl. DeepSpeed-Chat) and H2O LLM Studio.
The products
30 products in Open-source fine-tuning libraries.
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From our census of 2026-11-08. A product listed here is one that belongs in this category; the search answer says whether we have checked it.
Questions
Open-source fine-tuning libraries, answered.
What is Open-source fine-tuning libraries in AI infrastructure?Open-source fine-tuning libraries covers self-run libraries for fine-tuning models on your own GPUs (LoRA/QLoRA, SFT, recipe toolkits); the code counterpart to managed fine-tuning platforms.
Which layer of AI infrastructure is Open-source fine-tuning libraries in?Open-source fine-tuning libraries is in the Training and fine-tuning layer. Training and fine-tuning covers the frameworks, libraries and platforms used to train a model from scratch or adapt an existing one to a task, and the tools that track those experiments.
Which products are in Open-source fine-tuning libraries?We track 30 products in Open-source fine-tuning libraries, including AReaL, Axolotl, bitsandbytes (QLoRA quantization), DeepSpeed (incl. DeepSpeed-Chat), H2O LLM Studio, Hugging Face AutoTrain Advanced, Kiln and Levanter. The full list is on this page.
Training and fine-tuning
The other categories in Training and fine-tuning.
AutoML & hyperparameter optimizationComputer vision toolkits & platformsDeep learning & ML frameworksDistributed training frameworksExperiment trackingFeature storesFederated & privacy-preserving learningFine-tuning platformsML workflow / MLOps platformsRL / post-training librariesRL environments & gyms